package main

import (
	"fmt"
	"os"
)
func  main()  {
	fmt.Println("hello world!")
	var s,sep string
	for i :=1;i<len(os.Args);i++ {
		s += sep+ os.Args[i]
		sep = "1,"
	}
	fmt.Print(s)

	s1,sep1 :="",""
	for _,arg :=range os.Args[1:]{
		s1 += sep1 + arg
		sep1 = "2,"
	}
	fmt.Print(s1)
}